Dow Up 15.32, Trading Heavy

NEW YORK -- Trading volume increased dramatically on Wall Street Wednesday as stock prices, despite some last-hour selling pressure, rose for the second consecutive day.

Airline issues showed the best improvement as investors reacted positively to fare increases, and signs of increased air travel.

The Dow Jones industrial average finished up 15.32 points at 1,782.90 and had been up more than 29 points Wednesday before profit taking.

USX Corp. was the day`s busiest stock, with more than 11 million shares traded. It gained $1, to $24.75, on speculation that investor Carl C. Icahn was increasing his holdings above the 5 percent level.